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http://dx.doi.org/10.7236/JIWIT.2012.12.5.91

Output Improvement of Two-dimensional Audio Actuators by Corona Surface Treatments to Increase Adhesive Properties of Piezoelectric Materials  

Um, Kee-Hong (Information Technology, Hansei University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.12, no.5, 2012 , pp. 91-97 More about this Journal
Abstract
Recently, the performances of electrical and electronic devices are improving while the sizes are becoming smaller. As sound-generating systems, the two-dimensional speakers have been developed in place of conventional three-dimensional ones. Piezoelectric materials show the mechanical vibrations due to the voltage applied from outside the materials. The early film speakers had a limitations of output power in that it was not easy to make the conducting macromolecular films on the surfaces of the materials due to the internal chemical properties of materials. We have adopted the corona surface treatment in order to improve the output characteristics by increasing the adhesion of the coating material on to the surface of the center material of piezo film. The results showed the improvement of output power in the wider range of operating frequencies.
Keywords
Piezo Propperty; Polyvinylidene fluoride; Corona surface treatment; Conductive macromolecular compound; CMC; Sound pressure level(SPL);
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Times Cited By KSCI : 2  (Citation Analysis)
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